Tooth whitening device



FIG. 1 is a front perspective view of the tooth whitening device showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view; and,

FIG. 7 is a front perspective view thereof, show in articulated position.

The surface or portion of the article not shown in the drawing or described in the specification forms no part of the claimed design. 

The ornamental design for a tooth whitening device, as shown and described. 